12246 research outputs found
Sort by
Tailoring Strut Thicknesses for Selective THz Negative Curvature Fiber Sensors
No full textA cascaded hollow-core negative curvature fiber design is proposed for selective THz sensing. Numerical investigations suggest significant spectral shift up to 0.1 THz in relative sensitivities, enabling differentiation between analytes at certain design frequencies
Higher Order Mode Analysis in Frequency Selective Negative Curvature Fibers
No full textA novel negative curvature hollow-core fiber is numerically designed capable of filtering specific frequencies. The six-tube silica fiber strongly favors fundamental mode transmission over higher order modes despite uneven positioning of cladding elements
Tailoring Strut Thicknesses for Selective THz Negative Curvature Fiber Sensors
No full textA cascaded hollow-core negative curvature fiber design is proposed for selective THz sensing. Numerical investigations suggest significant spectral shift up to 0.1 THz in relative sensitivities, enabling differentiation between analytes at certain design frequencies
Unlocking Blockchain in Construction: A Systematic Review of Applications and Barriers
No full textThe emergence of construction 5.0 marks a shift toward a human-centric approach to digitization within the construction industry. Along with diverse digital innovations related to this shift, blockchain technology offers vast opportunities for the construction industry, including streamlining project management processes, enhancing transparency in payment processes, and improving contract administration. This paper systematically reviews 109 articles using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol to examine the applications of blockchain in construction, identifying twenty-three topics across eight thematic areas. These areas were further mapped using VOSviewer Online version 1.2.3 to identify interrelationships among the themes and highlight their broad impact. Key features like immutability, security, transparency, and traceability show promise in contract administration, supply chain logistics, facilities management, and sustainability. However, the study also describes the challenges of adopting blockchain in construction, emphasizing the need for enhanced stakeholder education, improved regulatory frameworks, and the creation of industry-specific blockchain platforms to support its acceptance in the construction industry. Emphasizing emerging blockchain applications and the adoption challenges equips researchers and practitioners with the knowledge of these applications and their significance to construction practices
Poetry Walk Keynote: Rosanna Warren
No full texthttps://docs.rwu.edu/talking-in-the-library/1000/thumbnail.jp
Constraint Optimization Model for Dynamic Parking Space Allocation
No full textManaging car parking systems is a complex process because multiple constraints must be considered; these include organizational and operational constraints. In this paper, a constraint optimization model for dynamic parking space allocation is introduced. An ad hoc algorithm is proposed, presented, and explained to achieve the goal of our proposed model. This paper makes research contributions by providing an intelligent prioritization mechanism, considering user schedule shifts and parking constraints, and assigning suitable parking slots based on a dynamic distribution. The proposed model is implemented to demonstrate the applicability of our approach. A benchmark is constructed based on well-defined metrics to validate our proposed model and the results achieved
Investigating the Out-of-Plane Bending Stiffness Properties in Hybrid Species Diagonal-Cross-Laminated Timber Panels
No full textSince the introduction of Cross-laminated Timber (CLT) in Austria in the early 1990s, the adoption of this 90°-crosswise-laminated product has seen exponential growth worldwide. Compared to traditional laminated timber products (e.g., glulam), CLT provides improved dimensional stability but with reduced out-of-plane bending stiffness. To improve the bending stiffness, while maintaining relative dimensional stability, a modified orientation of the inner layers in a diagonal direction can be used. This novel product is Diagonal-Cross-laminated Timber (DCLT), a composite timber product, consisting of inner layers which are rotated at different angle-ply orientations between 0 and 90 degrees to the outer layers. To properly model the out-of-plane bending behavior of the DCLT, analytical models and finite element analysis (FEA) were used, and the results were validated by four-point bending tests performed on DCLT panels with angle-ply orientations of 10°, 20°, 40°, 70°, and a conventional CLT 90° panel. The results indicate that DCLT panels with angle-ply cross layers have a structural advantage in out-of-plane bending over traditional CLT (90°) panels. The apparent bending stiffness from DCLT 90° to DCLT ± 10° has an increase of 33%, 24%, and 35%, respectively, regarding the assessed methods of experimental, theoretical, and FEM modeling. Using these panels would allow for increased spans or load-carrying capacity for a given panel span-to-depth ratio. The development of DCLT and its introduction to the industry not only could enable the use of lower-quality timber that would not otherwise satisfy structural requirements for CLT but also could help reduce the fabrication cost of CLT due to utilizing lower amounts of fiber
Proposed Framework for a Comprehensive Cybersecurity Risk Management Strategy
No full textIn today\u27s age of technology, cybersecurity breaches can be a significant threat to an organization\u27s innovation and productivity. With the increasing risk of data breaches and the possibility of the entire enterprise being compromised, it is imperative to address cybersecurity risks strategically from the very top. Delegating cybersecurity management to the IT department is no longer a viable solution. With the threat of cyberattacks increasing, cybersecurity management must be everyone\u27s business, including the boards. This work proposes a strategic framework for a comprehensive cybersecurity risk management strategy, emphasizing the need for a well-thought-out plan to combat these risks
2024 Professor John Howard Birss, Jr. Memorial Lecture
No full texthttps://docs.rwu.edu/birss/1023/thumbnail.jp
